Asiatic softshell turtle

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Asiatic softshell turtle
COLLECTIE TROPENMUSEUM Rivierschildpad (Trionyx cartilagineus) die alleen op de oever komt om eieren te leggen TMnr 10006462.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Testudines
Family: Trionychidae
Genus: Amyda
Species: A. cartilaginea
Binomial name
Amyda cartilaginea
(Boddaert, 1770)
Synonyms[1]
  • Testudo cartilaginea Boddaert, 1770
  • Testudo membranacea Blumenbach, 1779
  • Testudo boddaerti Schneider, 1787
  • Testudo bodderti Schneider, 1787 (ex errore)
  • Amyda javanica Schweigger, 1809 (nomen nudum)
  • Trionyx javanicus Geoffroy Saint-Hilaire, 1809
  • Trionyx stellatus Geoffroy Saint-Hilaire, 1810(nomen novum)
  • Aspidonectes javanicus Wagler, 1830
  • Gymnopus javanicus A.M.C. Duméril & Bibron, 1835
  • Gymnopus cartilaginea Cantor, 1847
  • Trionyx cariniferus Gray, 1856
  • Trionyx ornatus Gray, 1861
  • Aspilus cariniferus Gray, 1864
  • Aspilus ornatus Gray, 1864
  • Aspilus punctulatus Gray, 1864
  • Potamochelys stellatus Gray, 1864
  • Trionyx phayrei Theobald, 1868
  • Trionyx jeudi Gray, 1869
  • Aspilus javanicus Gray, 1873
  • Ida ornata Gray, 1873
  • Trionyx ephippium Theobald, 1875
  • Trionyx cartilagineus Boulenger, 1889
  • Trionyx phayrii Boulenger, 1889 (ex errore)
  • Aspidonectes cartilagineus Baur, 1893
  • Aspidonectes phayrei Baur, 1893
  • Potamochelys cartilagineus O.P. Hay, 1904
  • Potamochelys javanicus O.P. Hay, 1904
  • Amyda cartilaginea Barbour, 1912
  • Amyda phayrii Barbour, 1912
  • Trionyx boddaertii Bourret, 1941 (ex errore)
  • Trionyx carinifera Bourret, 1941
  • Trionyx cartilagneus Thelwall, 1971 (ex errore)
  • Testudo boddaerta Auffenberg, 1974 (ex errore)
  • Trionyx cartilaginosis Auffenberg, 1974 (ex errore)
  • Trionyx cartilaginosus Auffenberg, 1974 (ex errore)
  • Tryonyx cartilageneus Nutaphand, 1979 (ex errore)
  • Trionyx cartilageneus Nutaphand, 1979
  • Trionyx cartlageneus Nutaphand, 1979 (ex errore)
  • Trionyx nakornsrithammarajensis Nutaphand, 1979
  • Trionyx cartilaginous Chkhikvadze, 1987 (ex errore)
  • Amyda nakornsrithammarajensis Ernst & Barbour, 1989
  • Amyda nakornsrithammarajensis Stubbs, 1989
  • Trionyx cartilageneus nakorn Nutaphand, 1990
  • Trionyx cartilageneus cartilageneus Nutaphand, 1990
  • Amyda cartilaginae Nöllert, 1992 (ex errore)
  • Trionyx cartilagineus nakorn Obst, 1996
  • Trionix cartilagineus Richard, 1999

The Asiatic softshell turtle (Amyda cartilaginea) or black rayed softshell turtle[2] is a species of softshell turtle in the Trionychidae family. Despite its common name, it is not the only softshell turtle in Asia (most trionychines are Asian).[1]

Geographic range[edit]

It is found in Borneo, Brunei, Cambodia, northeastern India, Indonesia, Java, Kalimantan, Laos, Malaysia, Myanmar, Sabah, Sarawak, Singapore, Thailand, and Vietnam.[3]

Description[edit]

Adults may attain a carapace length of 70 cm (27½ inches).

The oval carapace has rounded sides, and the head is relatively narrow.

This species exhibits sexual dimorphism in the color of the plastron, which is white in males, gray in females.[3]

Behavior[edit]

A. cartilaginea is nocturnal.[3]

Habitat[edit]

It prefers wetlands such as marshes, swamps, and large muddy rivers at lower elevations.[3]

Diet[edit]

It preys on water insects, shrimps, fishes, and frogs.[3]

Reproduction[edit]

Adult females lay eggs in holes on riverbanks. The spherical eggs are 21–33 mm (⅞-1¼ inch) in diameter. The number of eggs laid in a clutch varies from 4 to 8.[3]

References[edit]

  1. ^ a b Fritz, Uwe; Peter Havaš (2007). "Checklist of Chelonians of the World". Vertebrate Zoology 57 (2): 303–305. ISSN 18640-5755. Archived from the original on 2010-12-17. Retrieved 29 May 2012. 
  2. ^ Turtle - Black Rayed information
  3. ^ a b c d e f Das, Indraneil. 2006. A Photographic Guide to Snakes and Other Reptiles of Borneo. Ralph Curtis Books. Sanibel Island, Florida. 144 pp. ISBN 0-88359-061-1. (Amyda cartilaginea, p. 135.)
Amyda cartilaginea (Trionyx cartilagineus) in a Saint Petersburg museum

External links[edit]